diff --git a/hub/exports/building_energy/insel/insel_monthly_energy_balance.py b/hub/exports/building_energy/insel/insel_monthly_energy_balance.py
index 4774dbf3..494953af 100644
--- a/hub/exports/building_energy/insel/insel_monthly_energy_balance.py
+++ b/hub/exports/building_energy/insel/insel_monthly_energy_balance.py
@@ -46,7 +46,7 @@ class InselMonthlyEnergyBalance:
       if building.internal_zones is not None:
         for internal_zone in building.internal_zones:
           if internal_zone.thermal_zones is None:
-            logging.warning(f'Building %s has missing values. Monthly Energy Balance cannot be processed', building.name)
+            logging.warning('Building %s has missing values. Monthly Energy Balance cannot be processed', building.name)
             break
           self._contents.append(
             self._generate_meb_template(building, output_path, self._radiation_calculation_method, self._weather_format)
@@ -69,7 +69,6 @@ class InselMonthlyEnergyBalance:
       file_name = self._insel_files_paths[i_file]
       with open(Path(self._path / file_name).resolve(), 'w', encoding='utf8') as insel_file:
         insel_file.write(content)
-    return
 
   def _sanity_check(self):
     levels_of_detail = self._city.level_of_detail
@@ -142,9 +141,9 @@ class InselMonthlyEnergyBalance:
       parameters.append(f'{internal_zone.thermal_zones[0].total_floor_area * percentage_usage} '
                         f'% BP(11) #1 Area of zone {i + 1} (m2)')
       total_internal_gain = 0
-      for ig in usage.internal_gains:
-        internal_gain = ig.average_internal_gain * (ig.convective_fraction + ig.radiative_fraction)
-        for schedule in ig.schedules:
+      for i_gain in usage.internal_gains:
+        internal_gain = i_gain.average_internal_gain * (i_gain.convective_fraction + i_gain.radiative_fraction)
+        for schedule in i_gain.schedules:
           total_values = sum(schedule.values)
           total_hours = 0
           for day_type in schedule.day_types:
diff --git a/hub/exports/formats/obj.py b/hub/exports/formats/obj.py
index 4dcfeb64..2d0776d6 100644
--- a/hub/exports/formats/obj.py
+++ b/hub/exports/formats/obj.py
@@ -29,7 +29,7 @@ class Obj:
     file_name = self._city.name + '.obj'
     file_path = (Path(self._path).resolve() / file_name).resolve()
     vertices = {}
-    with open(file_path, 'w') as obj:
+    with open(file_path, 'w', encoding='utf-8') as obj:
       obj.write("# cerc-hub export\n")
       vertex_index = 0
       faces = []
@@ -42,7 +42,7 @@ class Obj:
           face = 'f '
           for coordinate in surface.perimeter_polygon.coordinates:
             vertex = self._to_vertex(coordinate)
-            if vertex not in vertices.keys():
+            if vertex not in vertices:
               vertex_index += 1
               vertices[vertex] = vertex_index
               current = vertex_index
diff --git a/hub/exports/formats/simplified_radiosity_algorithm.py b/hub/exports/formats/simplified_radiosity_algorithm.py
index 92718ff3..9c93d2d8 100644
--- a/hub/exports/formats/simplified_radiosity_algorithm.py
+++ b/hub/exports/formats/simplified_radiosity_algorithm.py
@@ -73,7 +73,7 @@ class SimplifiedRadiosityAlgorithm:
           representative_building = self._city.buildings[0]
           content += f'{day}  {month}  {hour}  {representative_building.global_horizontal[cte.HOUR].epw[i]}  ' \
                      f'{representative_building.beam[cte.HOUR].epw[i]}\n'
-    with open(file, "w") as file:
+    with open(file, 'w', encoding='utf-8') as file:
       file.write(content)
 
   def _export_sra_xml(self):
@@ -139,5 +139,5 @@ class SimplifiedRadiosityAlgorithm:
         }
       }
     }
-    with open(self._file_name, "w") as file:
+    with open(self._file_name, 'w', encoding='utf-8') as file:
       file.write(xmltodict.unparse(sra, pretty=True, short_empty_elements=True))
diff --git a/hub/exports/formats/triangular.py b/hub/exports/formats/triangular.py
index 25715d5b..eada8772 100644
--- a/hub/exports/formats/triangular.py
+++ b/hub/exports/formats/triangular.py
@@ -28,5 +28,5 @@ class Triangular:
     for building in self._city.buildings:
       trimesh = trimesh.union(building.simplified_polyhedron.trimesh)
 
-    with open(file_path, self._write_mode) as file:
+    with open(file_path, self._write_mode, encoding='utf-8') as file:
       file.write(trimesh.export(file_type=self._triangular_format))
diff --git a/hub/helpers/auth.py b/hub/helpers/auth.py
index edf213ea..9797f51b 100644
--- a/hub/helpers/auth.py
+++ b/hub/helpers/auth.py
@@ -1,5 +1,5 @@
 """
-Constant module
+Auth module
 SPDX - License - Identifier: LGPL - 3.0 - or -later
 Copyright © 2023 Concordia CERC group
 Project Coder Peter Yefi peteryefi@gmail.com
@@ -9,6 +9,9 @@ import bcrypt
 
 
 class Auth(object):
+  """
+  Auth class
+  """
 
   @staticmethod
   def hash_password(password: str) -> str:
diff --git a/hub/helpers/constants.py b/hub/helpers/constants.py
index 37ae857c..c42b47e4 100644
--- a/hub/helpers/constants.py
+++ b/hub/helpers/constants.py
@@ -204,8 +204,8 @@ MIN_FLOAT = float('-inf')
 # Tools
 SRA = 'sra'
 INSEL_MEB = 'insel meb'
-COOLING_PEAK_LOAD = f'cooling peak load'
-HEATING_PEAK_LOAD = f'heating peak load'
+COOLING_PEAK_LOAD = 'cooling peak load'
+HEATING_PEAK_LOAD = 'heating peak load'
 
 # Costs units
 CURRENCY_PER_SQM = 'currency/m2'
diff --git a/hub/helpers/data/alkis_function_to_hub_function.py b/hub/helpers/data/alkis_function_to_hub_function.py
index 7c01bc22..cf28361a 100644
--- a/hub/helpers/data/alkis_function_to_hub_function.py
+++ b/hub/helpers/data/alkis_function_to_hub_function.py
@@ -10,6 +10,9 @@ import hub.helpers.constants as cte
 
 
 class AlkisFunctionToHubFunction:
+  """
+  Alkis function to hub function class
+  """
 
   def __init__(self):
     self._dictionary = {"1000": cte.RESIDENTIAL,
@@ -183,4 +186,8 @@ class AlkisFunctionToHubFunction:
 
   @property
   def dictionary(self) -> dict:
+    """
+    Get the dictionary
+    :return: {}
+    """
     return self._dictionary
diff --git a/hub/helpers/data/hft_function_to_hub_function.py b/hub/helpers/data/hft_function_to_hub_function.py
index b9d814c1..cd728ce0 100644
--- a/hub/helpers/data/hft_function_to_hub_function.py
+++ b/hub/helpers/data/hft_function_to_hub_function.py
@@ -9,7 +9,9 @@ import hub.helpers.constants as cte
 
 
 class HftFunctionToHubFunction:
-
+  """
+  Hft function to hub function class
+  """
   def __init__(self):
     self._dictionary = {
       'residential': cte.RESIDENTIAL,
@@ -29,4 +31,8 @@ class HftFunctionToHubFunction:
 
   @property
   def dictionary(self) -> dict:
+    """
+    Get the dictionary
+    :return: {}
+    """
     return self._dictionary
diff --git a/hub/helpers/data/hub_function_to_montreal_custom_costs_function.py b/hub/helpers/data/hub_function_to_montreal_custom_costs_function.py
index 5e0d58f5..06b2e16b 100644
--- a/hub/helpers/data/hub_function_to_montreal_custom_costs_function.py
+++ b/hub/helpers/data/hub_function_to_montreal_custom_costs_function.py
@@ -9,6 +9,9 @@ import hub.helpers.constants as cte
 
 
 class HubFunctionToMontrealCustomCostsFunction:
+  """
+  Hub function to montreal custom cost function
+  """
 
   def __init__(self):
     self._dictionary = {
@@ -75,4 +78,8 @@ class HubFunctionToMontrealCustomCostsFunction:
 
   @property
   def dictionary(self) -> dict:
+    """
+    Get the dictionary
+    :return: {}
+    """
     return self._dictionary
diff --git a/hub/helpers/data/hub_function_to_nrcan_construction_function.py b/hub/helpers/data/hub_function_to_nrcan_construction_function.py
index 82370e08..8cec3715 100644
--- a/hub/helpers/data/hub_function_to_nrcan_construction_function.py
+++ b/hub/helpers/data/hub_function_to_nrcan_construction_function.py
@@ -9,7 +9,9 @@ import hub.helpers.constants as cte
 
 
 class HubFunctionToNrcanConstructionFunction:
-
+  """
+  Hub function to nrcan construction function class
+  """
   def __init__(self):
     self._dictionary = {
       cte.RESIDENTIAL: 'MidriseApartment',
@@ -75,4 +77,8 @@ class HubFunctionToNrcanConstructionFunction:
 
   @property
   def dictionary(self) -> dict:
+    """
+    Get the dictionary
+    :return: {}
+    """
     return self._dictionary
diff --git a/hub/helpers/data/hub_function_to_nrel_construction_function.py b/hub/helpers/data/hub_function_to_nrel_construction_function.py
index 0d9aedd8..ca4144a3 100644
--- a/hub/helpers/data/hub_function_to_nrel_construction_function.py
+++ b/hub/helpers/data/hub_function_to_nrel_construction_function.py
@@ -9,6 +9,9 @@ import hub.helpers.constants as cte
 
 
 class HubFunctionToNrelConstructionFunction:
+  """
+  Hub function to nrel construction function
+  """
 
   def __init__(self):
     self._dictionary = {
@@ -75,4 +78,8 @@ class HubFunctionToNrelConstructionFunction:
 
   @property
   def dictionary(self) -> dict:
+    """
+    Get the dictionary
+    :return: {}
+    """
     return self._dictionary
diff --git a/hub/helpers/data/hub_usage_to_comnet_usage.py b/hub/helpers/data/hub_usage_to_comnet_usage.py
index 3fb16c5a..f58193ac 100644
--- a/hub/helpers/data/hub_usage_to_comnet_usage.py
+++ b/hub/helpers/data/hub_usage_to_comnet_usage.py
@@ -9,6 +9,9 @@ import hub.helpers.constants as cte
 
 
 class HubUsageToComnetUsage:
+  """
+  Hub usage to comnet usage class
+  """
 
   def __init__(self):
     self._dictionary = {
@@ -75,4 +78,8 @@ class HubUsageToComnetUsage:
 
   @property
   def dictionary(self) -> dict:
+    """
+    Get the dictionary
+    :return: {}
+    """
     return self._dictionary
diff --git a/hub/helpers/data/hub_usage_to_hft_usage.py b/hub/helpers/data/hub_usage_to_hft_usage.py
index 988e0649..dbc4847e 100644
--- a/hub/helpers/data/hub_usage_to_hft_usage.py
+++ b/hub/helpers/data/hub_usage_to_hft_usage.py
@@ -9,6 +9,9 @@ import hub.helpers.constants as cte
 
 
 class HubUsageToHftUsage:
+  """
+  Hub usage to hft usage class
+  """
 
   def __init__(self):
     self._dictionary = {
@@ -75,4 +78,8 @@ class HubUsageToHftUsage:
 
   @property
   def dictionary(self) -> dict:
+    """
+    Get the dictionary
+    :return: {}
+    """
     return self._dictionary
diff --git a/hub/helpers/data/hub_usage_to_nrcan_usage.py b/hub/helpers/data/hub_usage_to_nrcan_usage.py
index 94eaa68f..ed280903 100644
--- a/hub/helpers/data/hub_usage_to_nrcan_usage.py
+++ b/hub/helpers/data/hub_usage_to_nrcan_usage.py
@@ -9,6 +9,9 @@ import hub.helpers.constants as cte
 
 
 class HubUsageToNrcanUsage:
+  """
+  Hub usage to nrcan usage class
+  """
 
   def __init__(self):
     self._dictionary = {
@@ -75,4 +78,8 @@ class HubUsageToNrcanUsage:
 
   @property
   def dictionary(self) -> dict:
+    """
+    Get the dictionary
+    :return: {}
+    """
     return self._dictionary
diff --git a/hub/helpers/data/montreal_demand_type_to_hub_energy_demand_type.py b/hub/helpers/data/montreal_demand_type_to_hub_energy_demand_type.py
index 26d0d454..de137777 100644
--- a/hub/helpers/data/montreal_demand_type_to_hub_energy_demand_type.py
+++ b/hub/helpers/data/montreal_demand_type_to_hub_energy_demand_type.py
@@ -9,7 +9,9 @@ import hub.helpers.constants as cte
 
 
 class MontrealDemandTypeToHubEnergyDemandType:
-
+  """
+  Montreal demand type to hub energy demand type
+  """
   def __init__(self):
     self._dictionary = {'heating': cte.HEATING,
                         'cooling': cte.COOLING,
@@ -19,4 +21,8 @@ class MontrealDemandTypeToHubEnergyDemandType:
 
   @property
   def dictionary(self) -> dict:
+    """
+    Get the dictionary
+    :return: {}
+    """
     return self._dictionary
diff --git a/hub/helpers/data/pluto_function_to_hub_function.py b/hub/helpers/data/pluto_function_to_hub_function.py
index 0e89b656..7d201bf7 100644
--- a/hub/helpers/data/pluto_function_to_hub_function.py
+++ b/hub/helpers/data/pluto_function_to_hub_function.py
@@ -9,7 +9,9 @@ import hub.helpers.constants as cte
 
 
 class PlutoFunctionToHubFunction:
-
+  """
+  Pluto function to hub function class
+  """
   def __init__(self):
     self._dictionary = {
       'A0': cte.SINGLE_FAMILY_HOUSE,
@@ -214,4 +216,8 @@ class PlutoFunctionToHubFunction:
 
   @property
   def dictionary(self) -> dict:
+    """
+    Get the dictionary
+    :return: {}
+    """
     return self._dictionary
diff --git a/hub/helpers/geometry_helper.py b/hub/helpers/geometry_helper.py
index d76e1af9..a558f2d8 100644
--- a/hub/helpers/geometry_helper.py
+++ b/hub/helpers/geometry_helper.py
@@ -7,12 +7,12 @@ Code contributors: Pilar Monsalvete Alvarez de Uribarri pilar.monsalvete@concord
 """
 import math
 from pathlib import Path
+from typing import Dict
 
-import numpy as np
 from PIL import Image
 from trimesh import Trimesh
 from trimesh import intersections
-from typing import Dict
+import numpy as np
 
 from hub.city_model_structure.attributes.polygon import Polygon
 from hub.city_model_structure.attributes.polyhedron import Polyhedron
@@ -20,6 +20,9 @@ from hub.helpers.location import Location
 
 
 class MapPoint:
+  """
+  Map point class
+  """
   def __init__(self, x, y):
     self._x = int(x)
     self._y = int(y)
@@ -47,10 +50,9 @@ class MapPoint:
   def __getitem__(self, index):
     if index == 0:
       return self._x
-    elif index == 1:
+    if index == 1:
       return self._y
-    else:
-      raise IndexError('Index error')
+    raise IndexError('Index error')
 
 
 class GeometryHelper:
@@ -146,11 +148,11 @@ class GeometryHelper:
               building_key = f'{building.name}_{building_start_coordinate}_{neighbour_start_coordinate}'
 
               # Add my neighbour info to my shared lines
-              if building.name in lines_information.keys() and neighbour_key in lines_information[building.name]:
+              if building.name in lines_information and neighbour_key in lines_information[building.name]:
                 shared_points = int(lines_information[building.name][neighbour_key]['shared_points'])
                 lines_information[building.name][neighbour_key]['shared_points'] = shared_points + 1
               else:
-                if building.name not in lines_information.keys():
+                if building.name not in lines_information:
                   lines_information[building.name] = {}
                 lines_information[building.name][neighbour_key] = {
                   'neighbour_name': neighbour.name,
@@ -166,11 +168,11 @@ class GeometryHelper:
                 }
 
               # Add my info to my neighbour shared lines
-              if neighbour.name in lines_information.keys() and building_key in lines_information[neighbour.name]:
+              if neighbour.name in lines_information and building_key in lines_information[neighbour.name]:
                 shared_points = int(lines_information[neighbour.name][building_key]['shared_points'])
                 lines_information[neighbour.name][building_key]['shared_points'] = shared_points + 1
               else:
-                if neighbour.name not in lines_information.keys():
+                if neighbour.name not in lines_information:
                   lines_information[neighbour.name] = {}
                 lines_information[neighbour.name][building_key] = {
                   'neighbour_name': building.name,
@@ -262,8 +264,8 @@ class GeometryHelper:
     #  once triangulate_polygon in Polygon class is solved
 
     normal_plane_opp = [None] * len(normal_plane)
-    for i in range(0, len(normal_plane)):
-      normal_plane_opp[i] = - normal_plane[i]
+    for index, normal in enumerate(normal_plane):
+      normal_plane_opp[index] = - normal
 
     section_1 = intersections.slice_mesh_plane(trimesh, normal_plane, point_plane)
     if section_1 is None:
@@ -293,8 +295,8 @@ class GeometryHelper:
     distance = math.inf
     country = 'Unknown'
     city = 'Unknown'
-    with open(_data_path, 'r', encoding='utf-8') as f:
-      for line_number, line in enumerate(f):
+    with open(_data_path, 'r', encoding='utf-8') as file:
+      for _, line in enumerate(file):
         fields = line.split('\t')
         file_city_name = fields[2]
         file_latitude = float(fields[4])
@@ -316,7 +318,7 @@ class GeometryHelper:
     :return: float
     """
     power = 0
-    for dimension in range(0, len(vertex1)):
-      power += math.pow(vertex2[dimension] - vertex1[dimension], 2)
+    for dimension, current_vertex in enumerate(vertex1):
+      power += math.pow(vertex2[dimension] - current_vertex, 2)
     distance = math.sqrt(power)
     return distance
diff --git a/hub/helpers/monthly_values.py b/hub/helpers/monthly_values.py
index 2dfa80d2..cfab31bf 100644
--- a/hub/helpers/monthly_values.py
+++ b/hub/helpers/monthly_values.py
@@ -1,19 +1,25 @@
 """
-Monthly values
+Monthly values module
 SPDX - License - Identifier: LGPL - 3.0 - or -later
 Copyright © 2020 Project Author Pilar Monsalvete pilar_monsalvete@yahoo.es
 """
-
+import calendar as cal
 import pandas as pd
 import numpy as np
-import calendar as cal
 
 
 class MonthlyValues:
+  """
+  Monthly values class
+  """
   def __init__(self):
     self._month_hour = None
 
   def get_mean_values(self, values):
+    """
+    Calculates the mean values for each month
+    :return: DataFrame(float)
+    """
     out = None
     if values is not None:
       if 'month' not in values.columns:
@@ -23,6 +29,10 @@ class MonthlyValues:
     return out
 
   def get_total_month(self, values):
+    """
+    Calculates the total value for each month
+    :return: DataFrame(int)
+    """
     out = None
     if values is not None:
       if 'month' not in values.columns:
diff --git a/hub/helpers/peak_loads.py b/hub/helpers/peak_loads.py
index 9bfb00d6..e46a8b51 100644
--- a/hub/helpers/peak_loads.py
+++ b/hub/helpers/peak_loads.py
@@ -48,6 +48,10 @@ class PeakLoads:
 
   @staticmethod
   def peak_loads_from_hourly(hourly_values):
+    """
+    Get peak loads from hourly
+    :return: [int]
+    """
     month = 1
     peaks = [0 for _ in range(12)]
     for i, value in enumerate(hourly_values):
@@ -59,6 +63,10 @@ class PeakLoads:
 
   @property
   def heating_peak_loads_from_methodology(self):
+    """
+    Get heating peak loads by calculate
+    :return: [int]
+    """
     if not self._can_be_calculated():
       return None
     monthly_heating_loads = []
@@ -79,13 +87,16 @@ class PeakLoads:
       heating_load_ventilation_sensible = loads.get_heating_ventilation_load_sensible(heating_ambient_temperature)
       heating_load_ventilation_latent = 0
       heating_load = heating_load_transmitted + heating_load_ventilation_sensible + heating_load_ventilation_latent
-      if heating_load < 0:
-        heating_load = 0
+      heating_load = max(heating_load, 0)
       monthly_heating_loads.append(heating_load)
     return monthly_heating_loads
 
   @property
   def cooling_peak_loads_from_methodology(self):
+    """
+    Get cooling peak loads by calculate
+    :return: [int]
+    """
     if not self._can_be_calculated():
       return None
     monthly_cooling_loads = []
@@ -113,7 +124,6 @@ class PeakLoads:
 
       cooling_load_latent = 0
       cooling_load = cooling_load_sensible + cooling_load_latent
-      if cooling_load > 0:
-        cooling_load = 0
+      cooling_load = min(cooling_load, 0)
       monthly_cooling_loads.append(abs(cooling_load))
     return monthly_cooling_loads
diff --git a/hub/helpers/utils.py b/hub/helpers/utils.py
index 89fa97d8..49fc982b 100644
--- a/hub/helpers/utils.py
+++ b/hub/helpers/utils.py
@@ -15,8 +15,11 @@ def validate_import_export_type(cls_name: type, handler: str):
   :param handler: import export handler
   :return: None
   """
-  functions = [function[1:] for function in dir(cls_name) if (type(getattr(cls_name, function)) is property or callable(getattr(cls_name, function))) and function in cls_name.__dict__ and function[0] == '_' and function != '__init__']
+  functions = [
+    function[1:] for function in dir(cls_name)
+    if type(getattr(cls_name, function)) in (property, callable(getattr(cls_name, function))) and function in cls_name.__dict__ and function[0] == '_' and function != '__init__'
+  ]
   if handler.lower() not in functions:
-      error_message = f'Wrong import type [{handler}]. Valid functions include {functions}'
-      logging.error(error_message)
-      raise Exception(error_message)
+    error_message = f'Wrong import type [{handler}]. Valid functions include {functions}'
+    logging.error(error_message)
+    raise ValueError(error_message)
diff --git a/requirements.txt b/requirements.txt
index 1538a51d..72293904 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,5 +24,4 @@ geopandas
 triangle
 psycopg2-binary
 Pillow
-pathlib
-pickle5
\ No newline at end of file
+pathlib
\ No newline at end of file